/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 04:28:31,793 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 04:28:31,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 04:28:31,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 04:28:31,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 04:28:31,817 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 04:28:31,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 04:28:31,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 04:28:31,820 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 04:28:31,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 04:28:31,838 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 04:28:31,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 04:28:31,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 04:28:31,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 04:28:31,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 04:28:31,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 04:28:31,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 04:28:31,851 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 04:28:31,856 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 04:28:31,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 04:28:31,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 04:28:31,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 04:28:31,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 04:28:31,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 04:28:31,868 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 04:28:31,868 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 04:28:31,869 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 04:28:31,870 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 04:28:31,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 04:28:31,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 04:28:31,874 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 04:28:31,876 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 04:28:31,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 04:28:31,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 04:28:31,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 04:28:31,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 04:28:31,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 04:28:31,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 04:28:31,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 04:28:31,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 04:28:31,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 04:28:31,880 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2022-12-06 04:28:31,911 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 04:28:31,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 04:28:31,913 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 04:28:31,913 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 04:28:31,913 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 04:28:31,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 04:28:31,914 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 04:28:31,914 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 04:28:31,914 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 04:28:31,914 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 04:28:31,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 04:28:31,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 04:28:31,915 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 04:28:31,915 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 04:28:31,915 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 04:28:31,915 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 04:28:31,915 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 04:28:31,915 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 04:28:31,915 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 04:28:31,915 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 04:28:31,916 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 04:28:31,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:28:31,916 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 04:28:31,916 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 04:28:31,916 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 04:28:31,916 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 04:28:31,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 04:28:31,916 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 04:28:31,916 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 04:28:32,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 04:28:32,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 04:28:32,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 04:28:32,208 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 04:28:32,208 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 04:28:32,209 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.i [2022-12-06 04:28:33,147 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 04:28:33,391 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 04:28:33,392 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.i [2022-12-06 04:28:33,399 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/daeb6d7a3/e55265a4607f47f4bba676b7b9861524/FLAG513ffd6bd [2022-12-06 04:28:33,412 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/daeb6d7a3/e55265a4607f47f4bba676b7b9861524 [2022-12-06 04:28:33,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 04:28:33,415 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 04:28:33,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 04:28:33,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 04:28:33,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 04:28:33,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:28:33" (1/1) ... [2022-12-06 04:28:33,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72bd6e9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:28:33, skipping insertion in model container [2022-12-06 04:28:33,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:28:33" (1/1) ... [2022-12-06 04:28:33,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 04:28:33,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 04:28:33,592 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.i[945,958] [2022-12-06 04:28:33,735 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,736 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,736 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,736 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,737 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,737 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,737 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,738 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,738 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,738 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,740 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,740 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,740 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,740 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,740 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,749 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,750 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,751 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,751 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,752 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,753 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:28:33,762 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 04:28:33,772 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.i[945,958] [2022-12-06 04:28:33,796 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,797 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,797 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,800 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,800 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,801 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,801 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,801 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,802 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,802 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,809 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,809 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,810 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,810 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,810 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:28:33,812 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:28:33,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:28:33,852 INFO L208 MainTranslator]: Completed translation [2022-12-06 04:28:33,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:28:33 WrapperNode [2022-12-06 04:28:33,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 04:28:33,853 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 04:28:33,853 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 04:28:33,853 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 04:28:33,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:28:33" (1/1) ... [2022-12-06 04:28:33,877 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:28:33" (1/1) ... [2022-12-06 04:28:33,895 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-12-06 04:28:33,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 04:28:33,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 04:28:33,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 04:28:33,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 04:28:33,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:28:33" (1/1) ... [2022-12-06 04:28:33,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:28:33" (1/1) ... [2022-12-06 04:28:33,917 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:28:33" (1/1) ... [2022-12-06 04:28:33,917 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:28:33" (1/1) ... [2022-12-06 04:28:33,921 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:28:33" (1/1) ... [2022-12-06 04:28:33,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:28:33" (1/1) ... [2022-12-06 04:28:33,923 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:28:33" (1/1) ... [2022-12-06 04:28:33,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:28:33" (1/1) ... [2022-12-06 04:28:33,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 04:28:33,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 04:28:33,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 04:28:33,926 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 04:28:33,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:28:33" (1/1) ... [2022-12-06 04:28:33,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:28:33,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 04:28:33,954 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 04:28:33,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 04:28:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 04:28:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 04:28:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 04:28:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 04:28:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 04:28:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-06 04:28:34,000 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-06 04:28:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-06 04:28:34,001 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-06 04:28:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-06 04:28:34,001 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-06 04:28:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 04:28:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 04:28:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 04:28:34,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 04:28:34,002 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 04:28:34,146 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 04:28:34,147 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 04:28:34,249 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 04:28:34,254 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 04:28:34,255 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 04:28:34,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:28:34 BoogieIcfgContainer [2022-12-06 04:28:34,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 04:28:34,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 04:28:34,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 04:28:34,260 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 04:28:34,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:28:33" (1/3) ... [2022-12-06 04:28:34,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@650342b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:28:34, skipping insertion in model container [2022-12-06 04:28:34,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:28:33" (2/3) ... [2022-12-06 04:28:34,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@650342b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:28:34, skipping insertion in model container [2022-12-06 04:28:34,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:28:34" (3/3) ... [2022-12-06 04:28:34,262 INFO L112 eAbstractionObserver]: Analyzing ICFG safe013_tso.i [2022-12-06 04:28:34,275 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 04:28:34,276 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 04:28:34,276 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 04:28:34,331 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 04:28:34,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 85 transitions, 185 flow [2022-12-06 04:28:34,402 INFO L130 PetriNetUnfolder]: 2/82 cut-off events. [2022-12-06 04:28:34,402 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:28:34,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-06 04:28:34,406 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 85 transitions, 185 flow [2022-12-06 04:28:34,408 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 70 transitions, 149 flow [2022-12-06 04:28:34,409 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:28:34,421 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 70 transitions, 149 flow [2022-12-06 04:28:34,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 70 transitions, 149 flow [2022-12-06 04:28:34,449 INFO L130 PetriNetUnfolder]: 1/70 cut-off events. [2022-12-06 04:28:34,449 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:28:34,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 1/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 38 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-12-06 04:28:34,452 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 70 transitions, 149 flow [2022-12-06 04:28:34,452 INFO L188 LiptonReduction]: Number of co-enabled transitions 1044 [2022-12-06 04:28:36,420 INFO L203 LiptonReduction]: Total number of compositions: 53 [2022-12-06 04:28:36,432 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 04:28:36,436 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7c577b8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 04:28:36,437 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-06 04:28:36,440 INFO L130 PetriNetUnfolder]: 0/13 cut-off events. [2022-12-06 04:28:36,440 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:28:36,440 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:28:36,440 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:28:36,441 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 04:28:36,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:28:36,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1115665116, now seen corresponding path program 1 times [2022-12-06 04:28:36,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:28:36,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833975867] [2022-12-06 04:28:36,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:28:36,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:28:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:28:36,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:28:36,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:28:36,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833975867] [2022-12-06 04:28:36,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833975867] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:28:36,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:28:36,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 04:28:36,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070405890] [2022-12-06 04:28:36,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:28:36,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-06 04:28:36,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:28:36,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-06 04:28:36,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-06 04:28:36,670 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 18 [2022-12-06 04:28:36,671 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 45 flow. Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:28:36,671 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:28:36,671 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 18 [2022-12-06 04:28:36,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:28:36,756 INFO L130 PetriNetUnfolder]: 164/287 cut-off events. [2022-12-06 04:28:36,757 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-06 04:28:36,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 588 conditions, 287 events. 164/287 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1156 event pairs, 164 based on Foata normal form. 0/274 useless extension candidates. Maximal degree in co-relation 577. Up to 271 conditions per place. [2022-12-06 04:28:36,761 INFO L137 encePairwiseOnDemand]: 17/18 looper letters, 14 selfloop transitions, 0 changer transitions 0/17 dead transitions. [2022-12-06 04:28:36,761 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 17 transitions, 71 flow [2022-12-06 04:28:36,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-06 04:28:36,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-06 04:28:36,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 21 transitions. [2022-12-06 04:28:36,770 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2022-12-06 04:28:36,771 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 45 flow. Second operand 2 states and 21 transitions. [2022-12-06 04:28:36,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 17 transitions, 71 flow [2022-12-06 04:28:36,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 17 transitions, 68 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-06 04:28:36,774 INFO L231 Difference]: Finished difference. Result has 25 places, 17 transitions, 40 flow [2022-12-06 04:28:36,775 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=25, PETRI_TRANSITIONS=17} [2022-12-06 04:28:36,778 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, -2 predicate places. [2022-12-06 04:28:36,779 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:28:36,779 INFO L89 Accepts]: Start accepts. Operand has 25 places, 17 transitions, 40 flow [2022-12-06 04:28:36,781 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:28:36,781 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:28:36,781 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 17 transitions, 40 flow [2022-12-06 04:28:36,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 24 places, 17 transitions, 40 flow [2022-12-06 04:28:36,788 INFO L130 PetriNetUnfolder]: 0/17 cut-off events. [2022-12-06 04:28:36,788 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:28:36,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-06 04:28:36,788 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 17 transitions, 40 flow [2022-12-06 04:28:36,789 INFO L188 LiptonReduction]: Number of co-enabled transitions 126 [2022-12-06 04:28:36,811 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:28:36,813 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 34 [2022-12-06 04:28:36,813 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 17 transitions, 40 flow [2022-12-06 04:28:36,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:28:36,814 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:28:36,814 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:28:36,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 04:28:36,817 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 04:28:36,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:28:36,817 INFO L85 PathProgramCache]: Analyzing trace with hash 225880505, now seen corresponding path program 1 times [2022-12-06 04:28:36,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:28:36,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509659233] [2022-12-06 04:28:36,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:28:36,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:28:36,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:28:37,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:28:37,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:28:37,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509659233] [2022-12-06 04:28:37,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509659233] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:28:37,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:28:37,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 04:28:37,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387726754] [2022-12-06 04:28:37,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:28:37,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 04:28:37,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:28:37,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 04:28:37,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 04:28:37,018 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 17 [2022-12-06 04:28:37,018 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 17 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:28:37,018 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:28:37,018 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 17 [2022-12-06 04:28:37,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:28:37,095 INFO L130 PetriNetUnfolder]: 354/584 cut-off events. [2022-12-06 04:28:37,095 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:28:37,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1202 conditions, 584 events. 354/584 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2628 event pairs, 144 based on Foata normal form. 27/610 useless extension candidates. Maximal degree in co-relation 1194. Up to 400 conditions per place. [2022-12-06 04:28:37,098 INFO L137 encePairwiseOnDemand]: 11/17 looper letters, 23 selfloop transitions, 5 changer transitions 0/29 dead transitions. [2022-12-06 04:28:37,098 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 29 transitions, 124 flow [2022-12-06 04:28:37,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 04:28:37,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 04:28:37,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2022-12-06 04:28:37,100 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6274509803921569 [2022-12-06 04:28:37,100 INFO L175 Difference]: Start difference. First operand has 24 places, 17 transitions, 40 flow. Second operand 3 states and 32 transitions. [2022-12-06 04:28:37,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 29 transitions, 124 flow [2022-12-06 04:28:37,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 29 transitions, 124 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-06 04:28:37,101 INFO L231 Difference]: Finished difference. Result has 27 places, 20 transitions, 69 flow [2022-12-06 04:28:37,102 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=27, PETRI_TRANSITIONS=20} [2022-12-06 04:28:37,102 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2022-12-06 04:28:37,102 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:28:37,102 INFO L89 Accepts]: Start accepts. Operand has 27 places, 20 transitions, 69 flow [2022-12-06 04:28:37,103 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:28:37,103 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:28:37,103 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 20 transitions, 69 flow [2022-12-06 04:28:37,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 20 transitions, 69 flow [2022-12-06 04:28:37,108 INFO L130 PetriNetUnfolder]: 11/52 cut-off events. [2022-12-06 04:28:37,108 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 04:28:37,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 52 events. 11/52 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 178 event pairs, 7 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 91. Up to 26 conditions per place. [2022-12-06 04:28:37,109 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 20 transitions, 69 flow [2022-12-06 04:28:37,109 INFO L188 LiptonReduction]: Number of co-enabled transitions 136 [2022-12-06 04:28:37,112 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:28:37,113 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 11 [2022-12-06 04:28:37,114 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 20 transitions, 69 flow [2022-12-06 04:28:37,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:28:37,114 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:28:37,114 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:28:37,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 04:28:37,114 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 04:28:37,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:28:37,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1587638381, now seen corresponding path program 1 times [2022-12-06 04:28:37,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:28:37,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577553089] [2022-12-06 04:28:37,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:28:37,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:28:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:28:37,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:28:37,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:28:37,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577553089] [2022-12-06 04:28:37,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577553089] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:28:37,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:28:37,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 04:28:37,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990004230] [2022-12-06 04:28:37,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:28:37,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 04:28:37,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:28:37,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 04:28:37,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 04:28:37,219 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 17 [2022-12-06 04:28:37,219 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 20 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:28:37,219 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:28:37,219 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 17 [2022-12-06 04:28:37,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:28:37,280 INFO L130 PetriNetUnfolder]: 230/437 cut-off events. [2022-12-06 04:28:37,280 INFO L131 PetriNetUnfolder]: For 79/79 co-relation queries the response was YES. [2022-12-06 04:28:37,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1041 conditions, 437 events. 230/437 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2098 event pairs, 89 based on Foata normal form. 6/424 useless extension candidates. Maximal degree in co-relation 1030. Up to 280 conditions per place. [2022-12-06 04:28:37,285 INFO L137 encePairwiseOnDemand]: 14/17 looper letters, 18 selfloop transitions, 3 changer transitions 0/25 dead transitions. [2022-12-06 04:28:37,285 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 25 transitions, 124 flow [2022-12-06 04:28:37,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 04:28:37,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 04:28:37,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2022-12-06 04:28:37,287 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5686274509803921 [2022-12-06 04:28:37,287 INFO L175 Difference]: Start difference. First operand has 27 places, 20 transitions, 69 flow. Second operand 3 states and 29 transitions. [2022-12-06 04:28:37,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 25 transitions, 124 flow [2022-12-06 04:28:37,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 25 transitions, 118 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 04:28:37,289 INFO L231 Difference]: Finished difference. Result has 29 places, 20 transitions, 75 flow [2022-12-06 04:28:37,289 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=29, PETRI_TRANSITIONS=20} [2022-12-06 04:28:37,290 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 2 predicate places. [2022-12-06 04:28:37,290 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:28:37,291 INFO L89 Accepts]: Start accepts. Operand has 29 places, 20 transitions, 75 flow [2022-12-06 04:28:37,291 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:28:37,291 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:28:37,291 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 20 transitions, 75 flow [2022-12-06 04:28:37,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 20 transitions, 75 flow [2022-12-06 04:28:37,296 INFO L130 PetriNetUnfolder]: 8/45 cut-off events. [2022-12-06 04:28:37,296 INFO L131 PetriNetUnfolder]: For 7/9 co-relation queries the response was YES. [2022-12-06 04:28:37,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 45 events. 8/45 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 129 event pairs, 4 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 84. Up to 21 conditions per place. [2022-12-06 04:28:37,297 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 20 transitions, 75 flow [2022-12-06 04:28:37,297 INFO L188 LiptonReduction]: Number of co-enabled transitions 136 [2022-12-06 04:28:37,299 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:28:37,301 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 11 [2022-12-06 04:28:37,301 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 75 flow [2022-12-06 04:28:37,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:28:37,301 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:28:37,301 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:28:37,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 04:28:37,301 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 04:28:37,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:28:37,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1587638908, now seen corresponding path program 1 times [2022-12-06 04:28:37,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:28:37,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829983225] [2022-12-06 04:28:37,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:28:37,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:28:37,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:28:37,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:28:37,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:28:37,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829983225] [2022-12-06 04:28:37,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829983225] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:28:37,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:28:37,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 04:28:37,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534272723] [2022-12-06 04:28:37,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:28:37,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 04:28:37,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:28:37,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 04:28:37,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 04:28:37,429 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 17 [2022-12-06 04:28:37,430 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 75 flow. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:28:37,430 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:28:37,430 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 17 [2022-12-06 04:28:37,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:28:37,509 INFO L130 PetriNetUnfolder]: 318/530 cut-off events. [2022-12-06 04:28:37,509 INFO L131 PetriNetUnfolder]: For 129/129 co-relation queries the response was YES. [2022-12-06 04:28:37,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1349 conditions, 530 events. 318/530 cut-off events. For 129/129 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2260 event pairs, 74 based on Foata normal form. 3/532 useless extension candidates. Maximal degree in co-relation 1336. Up to 343 conditions per place. [2022-12-06 04:28:37,513 INFO L137 encePairwiseOnDemand]: 12/17 looper letters, 26 selfloop transitions, 7 changer transitions 0/34 dead transitions. [2022-12-06 04:28:37,513 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 34 transitions, 177 flow [2022-12-06 04:28:37,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 04:28:37,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 04:28:37,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 37 transitions. [2022-12-06 04:28:37,515 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5441176470588235 [2022-12-06 04:28:37,515 INFO L175 Difference]: Start difference. First operand has 29 places, 20 transitions, 75 flow. Second operand 4 states and 37 transitions. [2022-12-06 04:28:37,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 34 transitions, 177 flow [2022-12-06 04:28:37,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 34 transitions, 171 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-06 04:28:37,520 INFO L231 Difference]: Finished difference. Result has 31 places, 22 transitions, 97 flow [2022-12-06 04:28:37,520 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=97, PETRI_PLACES=31, PETRI_TRANSITIONS=22} [2022-12-06 04:28:37,521 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 4 predicate places. [2022-12-06 04:28:37,521 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:28:37,521 INFO L89 Accepts]: Start accepts. Operand has 31 places, 22 transitions, 97 flow [2022-12-06 04:28:37,522 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:28:37,522 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:28:37,523 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 22 transitions, 97 flow [2022-12-06 04:28:37,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 22 transitions, 97 flow [2022-12-06 04:28:37,527 INFO L130 PetriNetUnfolder]: 6/40 cut-off events. [2022-12-06 04:28:37,527 INFO L131 PetriNetUnfolder]: For 15/16 co-relation queries the response was YES. [2022-12-06 04:28:37,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 40 events. 6/40 cut-off events. For 15/16 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 104 event pairs, 3 based on Foata normal form. 1/40 useless extension candidates. Maximal degree in co-relation 88. Up to 18 conditions per place. [2022-12-06 04:28:37,528 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 22 transitions, 97 flow [2022-12-06 04:28:37,528 INFO L188 LiptonReduction]: Number of co-enabled transitions 152 [2022-12-06 04:28:37,530 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:28:37,534 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 13 [2022-12-06 04:28:37,534 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 22 transitions, 97 flow [2022-12-06 04:28:37,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:28:37,534 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:28:37,534 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:28:37,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 04:28:37,535 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 04:28:37,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:28:37,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1972149526, now seen corresponding path program 1 times [2022-12-06 04:28:37,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:28:37,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016422986] [2022-12-06 04:28:37,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:28:37,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:28:37,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:28:37,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:28:37,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:28:37,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016422986] [2022-12-06 04:28:37,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016422986] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:28:37,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:28:37,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 04:28:37,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836406352] [2022-12-06 04:28:37,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:28:37,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 04:28:37,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:28:37,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 04:28:37,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 04:28:37,612 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 17 [2022-12-06 04:28:37,612 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 22 transitions, 97 flow. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:28:37,612 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:28:37,613 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 17 [2022-12-06 04:28:37,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:28:37,701 INFO L130 PetriNetUnfolder]: 498/803 cut-off events. [2022-12-06 04:28:37,702 INFO L131 PetriNetUnfolder]: For 475/475 co-relation queries the response was YES. [2022-12-06 04:28:37,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2216 conditions, 803 events. 498/803 cut-off events. For 475/475 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3361 event pairs, 75 based on Foata normal form. 12/815 useless extension candidates. Maximal degree in co-relation 2202. Up to 263 conditions per place. [2022-12-06 04:28:37,708 INFO L137 encePairwiseOnDemand]: 10/17 looper letters, 40 selfloop transitions, 18 changer transitions 0/58 dead transitions. [2022-12-06 04:28:37,708 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 58 transitions, 356 flow [2022-12-06 04:28:37,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 04:28:37,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 04:28:37,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 51 transitions. [2022-12-06 04:28:37,710 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6 [2022-12-06 04:28:37,710 INFO L175 Difference]: Start difference. First operand has 31 places, 22 transitions, 97 flow. Second operand 5 states and 51 transitions. [2022-12-06 04:28:37,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 58 transitions, 356 flow [2022-12-06 04:28:37,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 58 transitions, 356 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-06 04:28:37,712 INFO L231 Difference]: Finished difference. Result has 39 places, 35 transitions, 261 flow [2022-12-06 04:28:37,712 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=261, PETRI_PLACES=39, PETRI_TRANSITIONS=35} [2022-12-06 04:28:37,713 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 12 predicate places. [2022-12-06 04:28:37,713 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:28:37,713 INFO L89 Accepts]: Start accepts. Operand has 39 places, 35 transitions, 261 flow [2022-12-06 04:28:37,714 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:28:37,714 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:28:37,714 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 35 transitions, 261 flow [2022-12-06 04:28:37,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 35 transitions, 261 flow [2022-12-06 04:28:37,722 INFO L130 PetriNetUnfolder]: 25/91 cut-off events. [2022-12-06 04:28:37,722 INFO L131 PetriNetUnfolder]: For 145/158 co-relation queries the response was YES. [2022-12-06 04:28:37,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332 conditions, 91 events. 25/91 cut-off events. For 145/158 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 375 event pairs, 0 based on Foata normal form. 4/93 useless extension candidates. Maximal degree in co-relation 315. Up to 38 conditions per place. [2022-12-06 04:28:37,723 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 35 transitions, 261 flow [2022-12-06 04:28:37,723 INFO L188 LiptonReduction]: Number of co-enabled transitions 200 [2022-12-06 04:28:37,725 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:28:37,726 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 13 [2022-12-06 04:28:37,726 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 35 transitions, 261 flow [2022-12-06 04:28:37,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:28:37,726 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:28:37,726 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:28:37,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 04:28:37,726 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 04:28:37,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:28:37,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1972482466, now seen corresponding path program 2 times [2022-12-06 04:28:37,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:28:37,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950187739] [2022-12-06 04:28:37,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:28:37,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:28:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:28:37,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:28:37,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:28:37,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950187739] [2022-12-06 04:28:37,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950187739] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:28:37,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:28:37,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 04:28:37,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253242030] [2022-12-06 04:28:37,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:28:37,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 04:28:37,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:28:37,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 04:28:37,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 04:28:37,816 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 17 [2022-12-06 04:28:37,816 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 35 transitions, 261 flow. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:28:37,816 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:28:37,816 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 17 [2022-12-06 04:28:37,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:28:37,906 INFO L130 PetriNetUnfolder]: 530/873 cut-off events. [2022-12-06 04:28:37,906 INFO L131 PetriNetUnfolder]: For 1712/1712 co-relation queries the response was YES. [2022-12-06 04:28:37,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2994 conditions, 873 events. 530/873 cut-off events. For 1712/1712 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3788 event pairs, 167 based on Foata normal form. 36/909 useless extension candidates. Maximal degree in co-relation 2974. Up to 322 conditions per place. [2022-12-06 04:28:37,910 INFO L137 encePairwiseOnDemand]: 10/17 looper letters, 28 selfloop transitions, 9 changer transitions 18/55 dead transitions. [2022-12-06 04:28:37,910 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 55 transitions, 464 flow [2022-12-06 04:28:37,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 04:28:37,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 04:28:37,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2022-12-06 04:28:37,911 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4823529411764706 [2022-12-06 04:28:37,911 INFO L175 Difference]: Start difference. First operand has 39 places, 35 transitions, 261 flow. Second operand 5 states and 41 transitions. [2022-12-06 04:28:37,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 55 transitions, 464 flow [2022-12-06 04:28:37,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 55 transitions, 464 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-06 04:28:37,916 INFO L231 Difference]: Finished difference. Result has 45 places, 24 transitions, 187 flow [2022-12-06 04:28:37,916 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=187, PETRI_PLACES=45, PETRI_TRANSITIONS=24} [2022-12-06 04:28:37,917 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 18 predicate places. [2022-12-06 04:28:37,917 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:28:37,917 INFO L89 Accepts]: Start accepts. Operand has 45 places, 24 transitions, 187 flow [2022-12-06 04:28:37,918 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:28:37,918 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:28:37,918 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 24 transitions, 187 flow [2022-12-06 04:28:37,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 24 transitions, 187 flow [2022-12-06 04:28:37,922 INFO L130 PetriNetUnfolder]: 7/45 cut-off events. [2022-12-06 04:28:37,923 INFO L131 PetriNetUnfolder]: For 101/102 co-relation queries the response was YES. [2022-12-06 04:28:37,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 45 events. 7/45 cut-off events. For 101/102 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 125 event pairs, 3 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 169. Up to 19 conditions per place. [2022-12-06 04:28:37,923 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 24 transitions, 187 flow [2022-12-06 04:28:37,924 INFO L188 LiptonReduction]: Number of co-enabled transitions 126 [2022-12-06 04:28:37,926 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:28:37,927 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 10 [2022-12-06 04:28:37,927 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 24 transitions, 187 flow [2022-12-06 04:28:37,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:28:37,927 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:28:37,928 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:28:37,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 04:28:37,928 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 04:28:37,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:28:37,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1502207349, now seen corresponding path program 1 times [2022-12-06 04:28:37,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:28:37,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328400375] [2022-12-06 04:28:37,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:28:37,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:28:37,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:28:38,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:28:38,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:28:38,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328400375] [2022-12-06 04:28:38,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328400375] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:28:38,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:28:38,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 04:28:38,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894143306] [2022-12-06 04:28:38,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:28:38,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 04:28:38,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:28:38,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 04:28:38,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 04:28:38,013 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 17 [2022-12-06 04:28:38,013 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 24 transitions, 187 flow. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:28:38,013 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:28:38,013 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 17 [2022-12-06 04:28:38,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:28:38,088 INFO L130 PetriNetUnfolder]: 175/336 cut-off events. [2022-12-06 04:28:38,088 INFO L131 PetriNetUnfolder]: For 1501/1532 co-relation queries the response was YES. [2022-12-06 04:28:38,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1244 conditions, 336 events. 175/336 cut-off events. For 1501/1532 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1467 event pairs, 43 based on Foata normal form. 23/341 useless extension candidates. Maximal degree in co-relation 1220. Up to 193 conditions per place. [2022-12-06 04:28:38,090 INFO L137 encePairwiseOnDemand]: 11/17 looper letters, 34 selfloop transitions, 7 changer transitions 10/57 dead transitions. [2022-12-06 04:28:38,090 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 57 transitions, 500 flow [2022-12-06 04:28:38,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 04:28:38,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 04:28:38,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 54 transitions. [2022-12-06 04:28:38,093 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6352941176470588 [2022-12-06 04:28:38,093 INFO L175 Difference]: Start difference. First operand has 45 places, 24 transitions, 187 flow. Second operand 5 states and 54 transitions. [2022-12-06 04:28:38,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 57 transitions, 500 flow [2022-12-06 04:28:38,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 57 transitions, 383 flow, removed 10 selfloop flow, removed 10 redundant places. [2022-12-06 04:28:38,099 INFO L231 Difference]: Finished difference. Result has 42 places, 30 transitions, 178 flow [2022-12-06 04:28:38,099 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=178, PETRI_PLACES=42, PETRI_TRANSITIONS=30} [2022-12-06 04:28:38,099 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 15 predicate places. [2022-12-06 04:28:38,100 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:28:38,100 INFO L89 Accepts]: Start accepts. Operand has 42 places, 30 transitions, 178 flow [2022-12-06 04:28:38,100 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:28:38,100 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:28:38,103 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 30 transitions, 178 flow [2022-12-06 04:28:38,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 30 transitions, 178 flow [2022-12-06 04:28:38,117 INFO L130 PetriNetUnfolder]: 65/158 cut-off events. [2022-12-06 04:28:38,117 INFO L131 PetriNetUnfolder]: For 248/273 co-relation queries the response was YES. [2022-12-06 04:28:38,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 507 conditions, 158 events. 65/158 cut-off events. For 248/273 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 716 event pairs, 26 based on Foata normal form. 2/144 useless extension candidates. Maximal degree in co-relation 490. Up to 108 conditions per place. [2022-12-06 04:28:38,119 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 30 transitions, 178 flow [2022-12-06 04:28:38,119 INFO L188 LiptonReduction]: Number of co-enabled transitions 182 [2022-12-06 04:28:38,168 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 04:28:38,169 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 69 [2022-12-06 04:28:38,169 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 29 transitions, 172 flow [2022-12-06 04:28:38,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:28:38,169 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:28:38,169 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:28:38,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 04:28:38,169 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 04:28:38,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:28:38,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1088417864, now seen corresponding path program 1 times [2022-12-06 04:28:38,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:28:38,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710063237] [2022-12-06 04:28:38,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:28:38,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:28:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:28:38,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:28:38,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:28:38,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710063237] [2022-12-06 04:28:38,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710063237] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:28:38,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:28:38,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 04:28:38,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726193787] [2022-12-06 04:28:38,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:28:38,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 04:28:38,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:28:38,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 04:28:38,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 04:28:38,281 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 17 [2022-12-06 04:28:38,281 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 29 transitions, 172 flow. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:28:38,281 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:28:38,281 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 17 [2022-12-06 04:28:38,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:28:38,365 INFO L130 PetriNetUnfolder]: 194/386 cut-off events. [2022-12-06 04:28:38,366 INFO L131 PetriNetUnfolder]: For 579/581 co-relation queries the response was YES. [2022-12-06 04:28:38,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1483 conditions, 386 events. 194/386 cut-off events. For 579/581 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1628 event pairs, 26 based on Foata normal form. 10/396 useless extension candidates. Maximal degree in co-relation 1463. Up to 206 conditions per place. [2022-12-06 04:28:38,368 INFO L137 encePairwiseOnDemand]: 10/17 looper letters, 36 selfloop transitions, 12 changer transitions 8/58 dead transitions. [2022-12-06 04:28:38,368 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 58 transitions, 412 flow [2022-12-06 04:28:38,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 04:28:38,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 04:28:38,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 51 transitions. [2022-12-06 04:28:38,370 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-06 04:28:38,370 INFO L175 Difference]: Start difference. First operand has 42 places, 29 transitions, 172 flow. Second operand 6 states and 51 transitions. [2022-12-06 04:28:38,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 58 transitions, 412 flow [2022-12-06 04:28:38,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 58 transitions, 399 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-06 04:28:38,373 INFO L231 Difference]: Finished difference. Result has 45 places, 31 transitions, 215 flow [2022-12-06 04:28:38,373 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=215, PETRI_PLACES=45, PETRI_TRANSITIONS=31} [2022-12-06 04:28:38,376 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 18 predicate places. [2022-12-06 04:28:38,376 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:28:38,376 INFO L89 Accepts]: Start accepts. Operand has 45 places, 31 transitions, 215 flow [2022-12-06 04:28:38,377 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:28:38,377 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:28:38,377 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 31 transitions, 215 flow [2022-12-06 04:28:38,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 31 transitions, 215 flow [2022-12-06 04:28:38,389 INFO L130 PetriNetUnfolder]: 64/165 cut-off events. [2022-12-06 04:28:38,389 INFO L131 PetriNetUnfolder]: For 235/250 co-relation queries the response was YES. [2022-12-06 04:28:38,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 529 conditions, 165 events. 64/165 cut-off events. For 235/250 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 770 event pairs, 26 based on Foata normal form. 2/154 useless extension candidates. Maximal degree in co-relation 510. Up to 119 conditions per place. [2022-12-06 04:28:38,391 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 31 transitions, 215 flow [2022-12-06 04:28:38,391 INFO L188 LiptonReduction]: Number of co-enabled transitions 150 [2022-12-06 04:28:38,392 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [256] $Ultimate##0-->L726: Formula: (and (= v_P0Thread1of1ForFork1_~arg.base_5 |v_P0Thread1of1ForFork1_#in~arg.base_5|) (= v_P0Thread1of1ForFork1_~arg.offset_5 |v_P0Thread1of1ForFork1_#in~arg.offset_5|) (= v_~z~0_41 2)) InVars {P0Thread1of1ForFork1_#in~arg.offset=|v_P0Thread1of1ForFork1_#in~arg.offset_5|, P0Thread1of1ForFork1_#in~arg.base=|v_P0Thread1of1ForFork1_#in~arg.base_5|} OutVars{P0Thread1of1ForFork1_#in~arg.offset=|v_P0Thread1of1ForFork1_#in~arg.offset_5|, P0Thread1of1ForFork1_~arg.offset=v_P0Thread1of1ForFork1_~arg.offset_5, ~z~0=v_~z~0_41, P0Thread1of1ForFork1_#in~arg.base=|v_P0Thread1of1ForFork1_#in~arg.base_5|, P0Thread1of1ForFork1_~arg.base=v_P0Thread1of1ForFork1_~arg.base_5} AuxVars[] AssignedVars[P0Thread1of1ForFork1_~arg.offset, ~z~0, P0Thread1of1ForFork1_~arg.base] and [184] L743-->L746: Formula: (= v_~y~0_1 1) InVars {} OutVars{~y~0=v_~y~0_1} AuxVars[] AssignedVars[~y~0] [2022-12-06 04:28:38,408 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 04:28:38,409 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 33 [2022-12-06 04:28:38,409 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 31 transitions, 218 flow [2022-12-06 04:28:38,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:28:38,410 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:28:38,410 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:28:38,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 04:28:38,410 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 04:28:38,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:28:38,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1299782606, now seen corresponding path program 1 times [2022-12-06 04:28:38,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:28:38,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657269636] [2022-12-06 04:28:38,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:28:38,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:28:38,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:28:38,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:28:38,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:28:38,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657269636] [2022-12-06 04:28:38,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657269636] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:28:38,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:28:38,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 04:28:38,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015798203] [2022-12-06 04:28:38,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:28:38,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 04:28:38,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:28:38,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 04:28:38,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 04:28:38,517 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 18 [2022-12-06 04:28:38,517 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 31 transitions, 218 flow. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:28:38,517 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:28:38,517 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 18 [2022-12-06 04:28:38,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:28:38,584 INFO L130 PetriNetUnfolder]: 129/286 cut-off events. [2022-12-06 04:28:38,584 INFO L131 PetriNetUnfolder]: For 625/670 co-relation queries the response was YES. [2022-12-06 04:28:38,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1122 conditions, 286 events. 129/286 cut-off events. For 625/670 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1313 event pairs, 16 based on Foata normal form. 28/300 useless extension candidates. Maximal degree in co-relation 1100. Up to 165 conditions per place. [2022-12-06 04:28:38,586 INFO L137 encePairwiseOnDemand]: 12/18 looper letters, 27 selfloop transitions, 7 changer transitions 23/63 dead transitions. [2022-12-06 04:28:38,586 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 63 transitions, 538 flow [2022-12-06 04:28:38,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 04:28:38,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 04:28:38,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 64 transitions. [2022-12-06 04:28:38,587 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5925925925925926 [2022-12-06 04:28:38,587 INFO L175 Difference]: Start difference. First operand has 45 places, 31 transitions, 218 flow. Second operand 6 states and 64 transitions. [2022-12-06 04:28:38,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 63 transitions, 538 flow [2022-12-06 04:28:38,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 63 transitions, 538 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-06 04:28:38,590 INFO L231 Difference]: Finished difference. Result has 53 places, 28 transitions, 211 flow [2022-12-06 04:28:38,590 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=211, PETRI_PLACES=53, PETRI_TRANSITIONS=28} [2022-12-06 04:28:38,591 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 26 predicate places. [2022-12-06 04:28:38,591 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:28:38,591 INFO L89 Accepts]: Start accepts. Operand has 53 places, 28 transitions, 211 flow [2022-12-06 04:28:38,591 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:28:38,592 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:28:38,592 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 28 transitions, 211 flow [2022-12-06 04:28:38,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 28 transitions, 211 flow [2022-12-06 04:28:38,598 INFO L130 PetriNetUnfolder]: 16/78 cut-off events. [2022-12-06 04:28:38,598 INFO L131 PetriNetUnfolder]: For 207/235 co-relation queries the response was YES. [2022-12-06 04:28:38,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 331 conditions, 78 events. 16/78 cut-off events. For 207/235 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 305 event pairs, 3 based on Foata normal form. 6/81 useless extension candidates. Maximal degree in co-relation 307. Up to 50 conditions per place. [2022-12-06 04:28:38,599 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 28 transitions, 211 flow [2022-12-06 04:28:38,599 INFO L188 LiptonReduction]: Number of co-enabled transitions 106 [2022-12-06 04:28:38,601 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [190] L758-->L761: Formula: (= v_~z~0_2 1) InVars {} OutVars{~z~0=v_~z~0_2} AuxVars[] AssignedVars[~z~0] and [256] $Ultimate##0-->L726: Formula: (and (= v_P0Thread1of1ForFork1_~arg.base_5 |v_P0Thread1of1ForFork1_#in~arg.base_5|) (= v_P0Thread1of1ForFork1_~arg.offset_5 |v_P0Thread1of1ForFork1_#in~arg.offset_5|) (= v_~z~0_41 2)) InVars {P0Thread1of1ForFork1_#in~arg.offset=|v_P0Thread1of1ForFork1_#in~arg.offset_5|, P0Thread1of1ForFork1_#in~arg.base=|v_P0Thread1of1ForFork1_#in~arg.base_5|} OutVars{P0Thread1of1ForFork1_#in~arg.offset=|v_P0Thread1of1ForFork1_#in~arg.offset_5|, P0Thread1of1ForFork1_~arg.offset=v_P0Thread1of1ForFork1_~arg.offset_5, ~z~0=v_~z~0_41, P0Thread1of1ForFork1_#in~arg.base=|v_P0Thread1of1ForFork1_#in~arg.base_5|, P0Thread1of1ForFork1_~arg.base=v_P0Thread1of1ForFork1_~arg.base_5} AuxVars[] AssignedVars[P0Thread1of1ForFork1_~arg.offset, ~z~0, P0Thread1of1ForFork1_~arg.base] [2022-12-06 04:28:38,693 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-06 04:28:38,694 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 103 [2022-12-06 04:28:38,694 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 27 transitions, 211 flow [2022-12-06 04:28:38,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:28:38,694 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:28:38,695 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:28:38,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-06 04:28:38,695 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 04:28:38,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:28:38,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1556965073, now seen corresponding path program 1 times [2022-12-06 04:28:38,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:28:38,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286856635] [2022-12-06 04:28:38,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:28:38,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:28:38,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:28:38,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:28:38,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:28:38,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286856635] [2022-12-06 04:28:38,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286856635] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:28:38,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:28:38,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 04:28:38,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402784121] [2022-12-06 04:28:38,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:28:38,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 04:28:38,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:28:38,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 04:28:38,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-06 04:28:38,797 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 17 [2022-12-06 04:28:38,798 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 27 transitions, 211 flow. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:28:38,798 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:28:38,798 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 17 [2022-12-06 04:28:38,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:28:38,831 INFO L130 PetriNetUnfolder]: 57/141 cut-off events. [2022-12-06 04:28:38,831 INFO L131 PetriNetUnfolder]: For 436/464 co-relation queries the response was YES. [2022-12-06 04:28:38,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 627 conditions, 141 events. 57/141 cut-off events. For 436/464 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 576 event pairs, 11 based on Foata normal form. 15/146 useless extension candidates. Maximal degree in co-relation 611. Up to 64 conditions per place. [2022-12-06 04:28:38,832 INFO L137 encePairwiseOnDemand]: 12/17 looper letters, 0 selfloop transitions, 0 changer transitions 36/36 dead transitions. [2022-12-06 04:28:38,832 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 36 transitions, 301 flow [2022-12-06 04:28:38,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 04:28:38,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 04:28:38,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 44 transitions. [2022-12-06 04:28:38,833 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5176470588235295 [2022-12-06 04:28:38,833 INFO L175 Difference]: Start difference. First operand has 50 places, 27 transitions, 211 flow. Second operand 5 states and 44 transitions. [2022-12-06 04:28:38,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 36 transitions, 301 flow [2022-12-06 04:28:38,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 36 transitions, 245 flow, removed 12 selfloop flow, removed 10 redundant places. [2022-12-06 04:28:38,834 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2022-12-06 04:28:38,835 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2022-12-06 04:28:38,835 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 16 predicate places. [2022-12-06 04:28:38,835 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:28:38,835 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 0 transitions, 0 flow [2022-12-06 04:28:38,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-06 04:28:38,836 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-06 04:28:38,836 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:28:38,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2022-12-06 04:28:38,836 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-06 04:28:38,836 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 04:28:38,836 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:28:38,837 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-06 04:28:38,837 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-06 04:28:38,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:28:38,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-06 04:28:38,840 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-06 04:28:38,840 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-06 04:28:38,840 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-06 04:28:38,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-06 04:28:38,840 INFO L458 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:28:38,843 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 04:28:38,843 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 04:28:38,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:28:38 BasicIcfg [2022-12-06 04:28:38,846 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 04:28:38,846 INFO L158 Benchmark]: Toolchain (without parser) took 5431.30ms. Allocated memory was 181.4MB in the beginning and 288.4MB in the end (delta: 107.0MB). Free memory was 156.3MB in the beginning and 105.2MB in the end (delta: 51.0MB). Peak memory consumption was 159.6MB. Max. memory is 8.0GB. [2022-12-06 04:28:38,846 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 181.4MB. Free memory was 158.0MB in the beginning and 157.9MB in the end (delta: 70.1kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 04:28:38,847 INFO L158 Benchmark]: CACSL2BoogieTranslator took 436.66ms. Allocated memory is still 181.4MB. Free memory was 155.7MB in the beginning and 132.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-06 04:28:38,847 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.47ms. Allocated memory is still 181.4MB. Free memory was 132.7MB in the beginning and 130.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 04:28:38,847 INFO L158 Benchmark]: Boogie Preprocessor took 29.13ms. Allocated memory is still 181.4MB. Free memory was 130.6MB in the beginning and 129.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 04:28:38,847 INFO L158 Benchmark]: RCFGBuilder took 330.48ms. Allocated memory is still 181.4MB. Free memory was 129.0MB in the beginning and 115.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-06 04:28:38,847 INFO L158 Benchmark]: TraceAbstraction took 4587.86ms. Allocated memory was 181.4MB in the beginning and 288.4MB in the end (delta: 107.0MB). Free memory was 114.8MB in the beginning and 105.2MB in the end (delta: 9.6MB). Peak memory consumption was 117.6MB. Max. memory is 8.0GB. [2022-12-06 04:28:38,849 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 181.4MB. Free memory was 158.0MB in the beginning and 157.9MB in the end (delta: 70.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 436.66ms. Allocated memory is still 181.4MB. Free memory was 155.7MB in the beginning and 132.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.47ms. Allocated memory is still 181.4MB. Free memory was 132.7MB in the beginning and 130.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.13ms. Allocated memory is still 181.4MB. Free memory was 130.6MB in the beginning and 129.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 330.48ms. Allocated memory is still 181.4MB. Free memory was 129.0MB in the beginning and 115.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4587.86ms. Allocated memory was 181.4MB in the beginning and 288.4MB in the end (delta: 107.0MB). Free memory was 114.8MB in the beginning and 105.2MB in the end (delta: 9.6MB). Peak memory consumption was 117.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 79 PlacesBefore, 27 PlacesAfterwards, 70 TransitionsBefore, 18 TransitionsAfterwards, 1044 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 32 ConcurrentYvCompositions, 0 ChoiceCompositions, 53 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 802, independent: 763, independent conditional: 763, independent unconditional: 0, dependent: 39, dependent conditional: 39, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 802, independent: 763, independent conditional: 0, independent unconditional: 763, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 802, independent: 763, independent conditional: 0, independent unconditional: 763, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 802, independent: 763, independent conditional: 0, independent unconditional: 763, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 680, independent: 650, independent conditional: 0, independent unconditional: 650, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 680, independent: 638, independent conditional: 0, independent unconditional: 638, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 42, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 86, independent: 21, independent conditional: 0, independent unconditional: 21, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 802, independent: 113, independent conditional: 0, independent unconditional: 113, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 680, unknown conditional: 0, unknown unconditional: 680] , Statistics on independence cache: Total cache size (in pairs): 982, Positive cache size: 952, Positive conditional cache size: 0, Positive unconditional cache size: 952, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 24 PlacesBefore, 24 PlacesAfterwards, 17 TransitionsBefore, 17 TransitionsAfterwards, 126 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 71, independent: 57, independent conditional: 57, independent unconditional: 0, dependent: 14, dependent conditional: 14, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 71, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 71, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 71, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 59, independent: 49, independent conditional: 0, independent unconditional: 49, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 59, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 14, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 20, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 71, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 59, unknown conditional: 0, unknown unconditional: 59] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 49, Positive conditional cache size: 0, Positive unconditional cache size: 49, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 27 PlacesBefore, 27 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 136 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 39, independent: 33, independent conditional: 33, independent unconditional: 0, dependent: 6, dependent conditional: 6, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 39, independent: 33, independent conditional: 10, independent unconditional: 23, dependent: 6, dependent conditional: 3, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 39, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 39, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 39, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 61, Positive cache size: 51, Positive conditional cache size: 0, Positive unconditional cache size: 51, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 13, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 29 PlacesBefore, 29 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 136 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 40, independent: 33, independent conditional: 33, independent unconditional: 0, dependent: 7, dependent conditional: 7, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 40, independent: 33, independent conditional: 7, independent unconditional: 26, dependent: 7, dependent conditional: 2, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 42, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 42, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 42, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 63, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 11, Maximal queried relation: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 31 PlacesBefore, 31 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 152 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 56, independent: 48, independent conditional: 48, independent unconditional: 0, dependent: 8, dependent conditional: 8, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 56, independent: 48, independent conditional: 15, independent unconditional: 33, dependent: 8, dependent conditional: 2, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 56, independent: 48, independent conditional: 0, independent unconditional: 48, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 56, independent: 48, independent conditional: 0, independent unconditional: 48, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 56, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 66, Positive cache size: 56, Positive conditional cache size: 0, Positive unconditional cache size: 56, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 17, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 39 PlacesBefore, 39 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 200 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 53, independent: 42, independent conditional: 42, independent unconditional: 0, dependent: 11, dependent conditional: 11, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 53, independent: 42, independent conditional: 16, independent unconditional: 26, dependent: 11, dependent conditional: 2, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 57, independent: 42, independent conditional: 0, independent unconditional: 42, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 57, independent: 42, independent conditional: 0, independent unconditional: 42, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 57, independent: 42, independent conditional: 0, independent unconditional: 42, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 66, Positive cache size: 56, Positive conditional cache size: 0, Positive unconditional cache size: 56, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 22, Maximal queried relation: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 45 PlacesBefore, 45 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 126 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 44, independent: 37, independent conditional: 37, independent unconditional: 0, dependent: 7, dependent conditional: 7, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 44, independent: 37, independent conditional: 13, independent unconditional: 24, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 44, independent: 37, independent conditional: 0, independent unconditional: 37, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 44, independent: 37, independent conditional: 0, independent unconditional: 37, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 44, independent: 35, independent conditional: 0, independent unconditional: 35, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 58, Positive conditional cache size: 0, Positive unconditional cache size: 58, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 13, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 42 PlacesBefore, 42 PlacesAfterwards, 30 TransitionsBefore, 29 TransitionsAfterwards, 182 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 21, independent: 17, independent conditional: 17, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 21, independent: 17, independent conditional: 17, independent unconditional: 0, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 21, independent: 17, independent conditional: 10, independent unconditional: 7, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 21, independent: 17, independent conditional: 10, independent unconditional: 7, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 2, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 21, independent: 14, independent conditional: 8, independent unconditional: 6, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 3, unknown conditional: 2, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 71, Positive cache size: 61, Positive conditional cache size: 2, Positive unconditional cache size: 59, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 7, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 45 PlacesBefore, 45 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 150 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, independent: 5, independent conditional: 5, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5, independent: 5, independent conditional: 5, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 75, Positive cache size: 65, Positive conditional cache size: 2, Positive unconditional cache size: 63, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 5, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 51 PlacesBefore, 50 PlacesAfterwards, 28 TransitionsBefore, 27 TransitionsAfterwards, 106 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 9, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 9, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9, independent: 9, independent conditional: 3, independent unconditional: 6, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 3, independent unconditional: 6, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, independent: 5, independent conditional: 1, independent unconditional: 4, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 9, independent: 4, independent conditional: 2, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 5, unknown conditional: 1, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 80, Positive cache size: 70, Positive conditional cache size: 3, Positive unconditional cache size: 67, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 6, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 80, Positive cache size: 70, Positive conditional cache size: 3, Positive unconditional cache size: 67, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.5s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 171 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 171 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 421 IncrementalHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 16 mSDtfsCounter, 421 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=261occurred in iteration=5, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 391 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 04:28:38,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...